| /* |
| * drivers/s390/sysinfo.c |
| * |
| * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| * Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com) |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/kernel.h> |
| #include <linux/mm.h> |
| #include <linux/proc_fs.h> |
| #include <linux/init.h> |
| #include <asm/ebcdic.h> |
| |
| struct sysinfo_1_1_1 |
| { |
| char reserved_0[32]; |
| char manufacturer[16]; |
| char type[4]; |
| char reserved_1[12]; |
| char model[16]; |
| char sequence[16]; |
| char plant[4]; |
| }; |
| |
| struct sysinfo_1_2_1 |
| { |
| char reserved_0[80]; |
| char sequence[16]; |
| char plant[4]; |
| char reserved_1[2]; |
| unsigned short cpu_address; |
| }; |
| |
| struct sysinfo_1_2_2 |
| { |
| char reserved_0[32]; |
| unsigned int capability; |
| unsigned short cpus_total; |
| unsigned short cpus_configured; |
| unsigned short cpus_standby; |
| unsigned short cpus_reserved; |
| unsigned short adjustment[0]; |
| }; |
| |
| struct sysinfo_2_2_1 |
| { |
| char reserved_0[80]; |
| char sequence[16]; |
| char plant[4]; |
| unsigned short cpu_id; |
| unsigned short cpu_address; |
| }; |
| |
| struct sysinfo_2_2_2 |
| { |
| char reserved_0[32]; |
| unsigned short lpar_number; |
| char reserved_1; |
| unsigned char characteristics; |
| #define LPAR_CHAR_DEDICATED (1 << 7) |
| #define LPAR_CHAR_SHARED (1 << 6) |
| #define LPAR_CHAR_LIMITED (1 << 5) |
| unsigned short cpus_total; |
| unsigned short cpus_configured; |
| unsigned short cpus_standby; |
| unsigned short cpus_reserved; |
| char name[8]; |
| unsigned int caf; |
| char reserved_2[16]; |
| unsigned short cpus_dedicated; |
| unsigned short cpus_shared; |
| }; |
| |
| struct sysinfo_3_2_2 |
| { |
| char reserved_0[31]; |
| unsigned char count; |
| struct |
| { |
| char reserved_0[4]; |
| unsigned short cpus_total; |
| unsigned short cpus_configured; |
| unsigned short cpus_standby; |
| unsigned short cpus_reserved; |
| char name[8]; |
| unsigned int caf; |
| char cpi[16]; |
| char reserved_1[24]; |
| |
| } vm[8]; |
| }; |
| |
| union s390_sysinfo |
| { |
| struct sysinfo_1_1_1 sysinfo_1_1_1; |
| struct sysinfo_1_2_1 sysinfo_1_2_1; |
| struct sysinfo_1_2_2 sysinfo_1_2_2; |
| struct sysinfo_2_2_1 sysinfo_2_2_1; |
| struct sysinfo_2_2_2 sysinfo_2_2_2; |
| struct sysinfo_3_2_2 sysinfo_3_2_2; |
| }; |
| |
| static inline int stsi (void *sysinfo, |
| int fc, int sel1, int sel2) |
| { |
| int cc, retv; |
| |
| #ifndef CONFIG_64BIT |
| __asm__ __volatile__ ( "lr\t0,%2\n" |
| "\tlr\t1,%3\n" |
| "\tstsi\t0(%4)\n" |
| "0:\tipm\t%0\n" |
| "\tsrl\t%0,28\n" |
| "1:lr\t%1,0\n" |
| ".section .fixup,\"ax\"\n" |
| "2:\tlhi\t%0,3\n" |
| "\tbras\t1,3f\n" |
| "\t.long 1b\n" |
| "3:\tl\t1,0(1)\n" |
| "\tbr\t1\n" |
| ".previous\n" |
| ".section __ex_table,\"a\"\n" |
| "\t.align 4\n" |
| "\t.long 0b,2b\n" |
| ".previous\n" |
| : "=d" (cc), "=d" (retv) |
| : "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo) |
| : "cc", "memory", "0", "1" ); |
| #else |
| __asm__ __volatile__ ( "lr\t0,%2\n" |
| "lr\t1,%3\n" |
| "\tstsi\t0(%4)\n" |
| "0:\tipm\t%0\n" |
| "\tsrl\t%0,28\n" |
| "1:lr\t%1,0\n" |
| ".section .fixup,\"ax\"\n" |
| "2:\tlhi\t%0,3\n" |
| "\tjg\t1b\n" |
| ".previous\n" |
| ".section __ex_table,\"a\"\n" |
| "\t.align 8\n" |
| "\t.quad 0b,2b\n" |
| ".previous\n" |
| : "=d" (cc), "=d" (retv) |
| : "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo) |
| : "cc", "memory", "0", "1" ); |
| #endif |
| |
| return cc? -1 : retv; |
| } |
| |
| static inline int stsi_0 (void) |
| { |
| int rc = stsi (NULL, 0, 0, 0); |
| return rc == -1 ? rc : (((unsigned int)rc) >> 28); |
| } |
| |
| static inline int stsi_1_1_1 (struct sysinfo_1_1_1 *info) |
| { |
| int rc = stsi (info, 1, 1, 1); |
| if (rc != -1) |
| { |
| EBCASC (info->manufacturer, sizeof(info->manufacturer)); |
| EBCASC (info->type, sizeof(info->type)); |
| EBCASC (info->model, sizeof(info->model)); |
| EBCASC (info->sequence, sizeof(info->sequence)); |
| EBCASC (info->plant, sizeof(info->plant)); |
| } |
| return rc == -1 ? rc : 0; |
| } |
| |
| static inline int stsi_1_2_1 (struct sysinfo_1_2_1 *info) |
| { |
| int rc = stsi (info, 1, 2, 1); |
| if (rc != -1) |
| { |
| EBCASC (info->sequence, sizeof(info->sequence)); |
| EBCASC (info->plant, sizeof(info->plant)); |
| } |
| return rc == -1 ? rc : 0; |
| } |
| |
| static inline int stsi_1_2_2 (struct sysinfo_1_2_2 *info) |
| { |
| int rc = stsi (info, 1, 2, 2); |
| return rc == -1 ? rc : 0; |
| } |
| |
| static inline int stsi_2_2_1 (struct sysinfo_2_2_1 *info) |
| { |
| int rc = stsi (info, 2, 2, 1); |
| if (rc != -1) |
| { |
| EBCASC (info->sequence, sizeof(info->sequence)); |
| EBCASC (info->plant, sizeof(info->plant)); |
| } |
| return rc == -1 ? rc : 0; |
| } |
| |
| static inline int stsi_2_2_2 (struct sysinfo_2_2_2 *info) |
| { |
| int rc = stsi (info, 2, 2, 2); |
| if (rc != -1) |
| { |
| EBCASC (info->name, sizeof(info->name)); |
| } |
| return rc == -1 ? rc : 0; |
| } |
| |
| static inline int stsi_3_2_2 (struct sysinfo_3_2_2 *info) |
| { |
| int rc = stsi (info, 3, 2, 2); |
| if (rc != -1) |
| { |
| int i; |
| for (i = 0; i < info->count; i++) |
| { |
| EBCASC (info->vm[i].name, sizeof(info->vm[i].name)); |
| EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi)); |
| } |
| } |
| return rc == -1 ? rc : 0; |
| } |
| |
| |
| static int proc_read_sysinfo(char *page, char **start, |
| off_t off, int count, |
| int *eof, void *data) |
| { |
| unsigned long info_page = get_zeroed_page (GFP_KERNEL); |
| union s390_sysinfo *info = (union s390_sysinfo *) info_page; |
| int len = 0; |
| int level; |
| int i; |
| |
| if (!info) |
| return 0; |
| |
| level = stsi_0 (); |
| |
| if (level >= 1 && stsi_1_1_1 (&info->sysinfo_1_1_1) == 0) |
| { |
| len += sprintf (page+len, "Manufacturer: %-16.16s\n", |
| info->sysinfo_1_1_1.manufacturer); |
| len += sprintf (page+len, "Type: %-4.4s\n", |
| info->sysinfo_1_1_1.type); |
| len += sprintf (page+len, "Model: %-16.16s\n", |
| info->sysinfo_1_1_1.model); |
| len += sprintf (page+len, "Sequence Code: %-16.16s\n", |
| info->sysinfo_1_1_1.sequence); |
| len += sprintf (page+len, "Plant: %-4.4s\n", |
| info->sysinfo_1_1_1.plant); |
| } |
| |
| if (level >= 1 && stsi_1_2_2 (&info->sysinfo_1_2_2) == 0) |
| { |
| len += sprintf (page+len, "\n"); |
| len += sprintf (page+len, "CPUs Total: %d\n", |
| info->sysinfo_1_2_2.cpus_total); |
| len += sprintf (page+len, "CPUs Configured: %d\n", |
| info->sysinfo_1_2_2.cpus_configured); |
| len += sprintf (page+len, "CPUs Standby: %d\n", |
| info->sysinfo_1_2_2.cpus_standby); |
| len += sprintf (page+len, "CPUs Reserved: %d\n", |
| info->sysinfo_1_2_2.cpus_reserved); |
| |
| len += sprintf (page+len, "Capability: %d\n", |
| info->sysinfo_1_2_2.capability); |
| |
| for (i = 2; i <= info->sysinfo_1_2_2.cpus_total; i++) |
| len += sprintf (page+len, "Adjustment %02d-way: %d\n", |
| i, info->sysinfo_1_2_2.adjustment[i-2]); |
| } |
| |
| if (level >= 2 && stsi_2_2_2 (&info->sysinfo_2_2_2) == 0) |
| { |
| len += sprintf (page+len, "\n"); |
| len += sprintf (page+len, "LPAR Number: %d\n", |
| info->sysinfo_2_2_2.lpar_number); |
| |
| len += sprintf (page+len, "LPAR Characteristics: "); |
| if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_DEDICATED) |
| len += sprintf (page+len, "Dedicated "); |
| if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_SHARED) |
| len += sprintf (page+len, "Shared "); |
| if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_LIMITED) |
| len += sprintf (page+len, "Limited "); |
| len += sprintf (page+len, "\n"); |
| |
| len += sprintf (page+len, "LPAR Name: %-8.8s\n", |
| info->sysinfo_2_2_2.name); |
| |
| len += sprintf (page+len, "LPAR Adjustment: %d\n", |
| info->sysinfo_2_2_2.caf); |
| |
| len += sprintf (page+len, "LPAR CPUs Total: %d\n", |
| info->sysinfo_2_2_2.cpus_total); |
| len += sprintf (page+len, "LPAR CPUs Configured: %d\n", |
| info->sysinfo_2_2_2.cpus_configured); |
| len += sprintf (page+len, "LPAR CPUs Standby: %d\n", |
| info->sysinfo_2_2_2.cpus_standby); |
| len += sprintf (page+len, "LPAR CPUs Reserved: %d\n", |
| info->sysinfo_2_2_2.cpus_reserved); |
| len += sprintf (page+len, "LPAR CPUs Dedicated: %d\n", |
| info->sysinfo_2_2_2.cpus_dedicated); |
| len += sprintf (page+len, "LPAR CPUs Shared: %d\n", |
| info->sysinfo_2_2_2.cpus_shared); |
| } |
| |
| if (level >= 3 && stsi_3_2_2 (&info->sysinfo_3_2_2) == 0) |
| { |
| for (i = 0; i < info->sysinfo_3_2_2.count; i++) |
| { |
| len += sprintf (page+len, "\n"); |
| len += sprintf (page+len, "VM%02d Name: %-8.8s\n", |
| i, info->sysinfo_3_2_2.vm[i].name); |
| len += sprintf (page+len, "VM%02d Control Program: %-16.16s\n", |
| i, info->sysinfo_3_2_2.vm[i].cpi); |
| |
| len += sprintf (page+len, "VM%02d Adjustment: %d\n", |
| i, info->sysinfo_3_2_2.vm[i].caf); |
| |
| len += sprintf (page+len, "VM%02d CPUs Total: %d\n", |
| i, info->sysinfo_3_2_2.vm[i].cpus_total); |
| len += sprintf (page+len, "VM%02d CPUs Configured: %d\n", |
| i, info->sysinfo_3_2_2.vm[i].cpus_configured); |
| len += sprintf (page+len, "VM%02d CPUs Standby: %d\n", |
| i, info->sysinfo_3_2_2.vm[i].cpus_standby); |
| len += sprintf (page+len, "VM%02d CPUs Reserved: %d\n", |
| i, info->sysinfo_3_2_2.vm[i].cpus_reserved); |
| } |
| } |
| |
| free_page (info_page); |
| return len; |
| } |
| |
| static __init int create_proc_sysinfo(void) |
| { |
| create_proc_read_entry ("sysinfo", 0444, NULL, |
| proc_read_sysinfo, NULL); |
| return 0; |
| } |
| |
| __initcall(create_proc_sysinfo); |
| |